Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RUBBER DAMPER MEMBER AND TORSIONAL DAMPER
Document Type and Number:
WIPO Patent Application WO/2018/079076
Kind Code:
A1
Abstract:
Provided are: a rubber damper member with high loss factor at standard use temperature and small reduction of the loss factor from low temperature to high temperature, and a torsional damper with said rubber damper member. A rubber damper member 13 installed between a hub 11 and an inertia ring 12 of a torsional damper 10 has: a loss factor (tan δi) of at least 0.33 at standard use temperature in the state prior to installation in the torsional damper 10; a loss factor ratio (tan δh/tan δi) of the loss factor (tan δh) at a higher use temperature to the loss factor (tan δi) at standard use temperature of at least 0.86; and a ratio (E'pl/E'pi) of the storage modulus (E'pl) at a lower use temperature to the storage modulus (E'pi) at standard use temperature of 6.9 or less.

Inventors:
KATAKAI, Yuto (LTD. 3-105 Sugaya Ageo-sh, Saitama 61, 〒3628561, JP)
TABEI, Satoshi (LTD. 3-105 Sugaya Ageo-sh, Saitama 61, 〒3628561, JP)
ANDO, Akira (LTD. 3-105 Sugaya Ageo-sh, Saitama 61, 〒3628561, JP)
CHIBA, Takaaki (LTD. 3-105 Sugaya Ageo-sh, Saitama 61, 〒3628561, JP)
Application Number:
JP2017/031723
Publication Date:
May 03, 2018
Filing Date:
September 04, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUKOKU CO., LTD. (3-105 Sugaya, Ageo-shi Saitama, 61, 〒3628561, JP)
International Classes:
F16F15/126; C08K3/04; C08L23/16; F16F15/12
Foreign References:
JPH11210832A1999-08-03
JP2003056761A2003-02-26
JPH06239909A1994-08-30
JP2007009073A2007-01-18
JP2013194875A2013-09-30
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (3F Shinjuku Gyoen Bldg, 3-10 Shinjuku 2-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
Download PDF: